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fftools/ffmpeg_dec: stop accesing InputStream.fix_sub_duration

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Pass this information to dec_open() instead.

This is a step towards decoupling Decoder and InputStream.
This commit is contained in:
Anton Khirnov 2024-01-17 10:44:52 +01:00
parent 924a6f3cc7
commit 474ca6c71e
3 changed files with 16 additions and 6 deletions
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6
fftools/ffmpeg.h
View File

@ -280,6 +280,10 @@ typedef struct FilterGraph {
int nb_outputs;
} FilterGraph;
enum DecoderFlags {
DECODER_FLAG_FIX_SUB_DURATION = (1 << 0),
};
typedef struct Decoder {
const AVClass *class;
@ -735,7 +739,7 @@ int hwaccel_retrieve_data(AVCodecContext *avctx, AVFrame *input);
* is transferred to the decoder.
*/
int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx,
AVDictionary **dec_opts);
AVDictionary **dec_opts, int flags);
void dec_free(Decoder **pdec);
int dec_add_filter(Decoder *dec, InputFilter *ifilter);

13
fftools/ffmpeg_dec.c
View File

@ -45,6 +45,9 @@ typedef struct DecoderPriv {
// override output video sample aspect ratio with this value
AVRational sar_override;
// a combination of DECODER_FLAG_*, provided to dec_open()
int flags;
enum AVPixelFormat hwaccel_pix_fmt;
// pts/estimated duration of the last decoded frame
@ -326,7 +329,7 @@ static int process_subtitle(InputStream *ist, AVFrame *frame)
const AVSubtitle *subtitle = (AVSubtitle*)frame->buf[0]->data;
int ret = 0;
if (ist->fix_sub_duration) {
if (dp->flags & DECODER_FLAG_FIX_SUB_DURATION) {
AVSubtitle *sub_prev = dp->sub_prev[0]->buf[0] ?
(AVSubtitle*)dp->sub_prev[0]->buf[0]->data : NULL;
int end = 1;
@ -372,7 +375,7 @@ static int fix_sub_duration_heartbeat(InputStream *ist, int64_t signal_pts)
(AVSubtitle*)dp->sub_prev[0]->buf[0]->data : NULL;
AVSubtitle *subtitle;
if (!ist->fix_sub_duration || !prev_subtitle ||
if (!(dp->flags & DECODER_FLAG_FIX_SUB_DURATION) || !prev_subtitle ||
!prev_subtitle->num_rects || signal_pts <= prev_subtitle->pts)
return 0;
@ -895,7 +898,7 @@ static const AVClass dec_class = {
};
int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx,
AVDictionary **dec_opts)
AVDictionary **dec_opts, int flags)
{
DecoderPriv *dp;
const AVCodec *codec = ist->dec;
@ -909,12 +912,14 @@ int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx,
dp->sch = sch;
dp->sch_idx = sch_idx;
dp->flags = flags;
dp->dec.class = &dec_class;
dp->log_parent = ist;
snprintf(dp->log_name, sizeof(dp->log_name), "dec:%s", codec->name);
if (codec->type == AVMEDIA_TYPE_SUBTITLE && ist->fix_sub_duration) {
if (codec->type == AVMEDIA_TYPE_SUBTITLE &&
(dp->flags & DECODER_FLAG_FIX_SUB_DURATION)) {
for (int i = 0; i < FF_ARRAY_ELEMS(dp->sub_prev); i++) {
dp->sub_prev[i] = av_frame_alloc();
if (!dp->sub_prev[i])

3
fftools/ffmpeg_demux.c
View File

@ -891,6 +891,7 @@ static int ist_use(InputStream *ist, int decoding_needed)
if (decoding_needed && ds->sch_idx_dec < 0) {
int is_audio = ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
int dec_flags = !!ist->fix_sub_duration * DECODER_FLAG_FIX_SUB_DURATION;
ret = sch_add_dec(d->sch, decoder_thread, ist, d->loop && is_audio);
if (ret < 0)
@ -903,7 +904,7 @@ static int ist_use(InputStream *ist, int decoding_needed)
return ret;
ret = dec_open(ist, d->sch, ds->sch_idx_dec,
&ist->decoder_opts);
&ist->decoder_opts, dec_flags);
if (ret < 0)
return ret;